64342880

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{283}}^1$

素因数の和:341

約数の個数: 144

約数和(自身を含む): 183571920

約数和(自身を除く): 119229040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 49, 56, 58, 70, 80, 98, 112, 116, 140, 145, 160, 196, 203, 224, 232, 245, 280, 283, 290, 392, 406, 464, 490, 560, 566, 580, 784, 812, 928, 980, 1015, 1120, 1132, 1160, 1415, 1421, 1568, 1624, 1960, 1981, 2030, 2264, 2320, 2830, 2842, 3248, 3920, 3962, 4060, 4528, 4640, 5660, 5684, 6496, 7105, 7840, 7924, 8120, 8207, 9056, 9905, 11320, 11368, 13867, 14210, 15848, 16240, 16414, 19810, 22640, 22736, 27734, 28420, 31696, 32480, 32828, 39620, 41035, 45280, 45472, 55468, 56840, 57449, 63392, 65656, 69335, 79240, 82070, 110936, 113680, 114898, 131312, 138670, 158480, 164140, 221872, 227360, 229796, 262624, 277340, 287245, 316960, 328280, 402143, 443744, 459592, 554680, 574490, 656560, 804286, 919184, 1109360, 1148980, 1313120, 1608572, 1838368, 2010715, 2218720, 2297960, 3217144, 4021430, 4595920, 6434288, 8042860, 9191840, 12868576, 16085720, 32171440, 64342880]

約数ペア:

[(1, 64342880), (2, 32171440), (4, 16085720), (5, 12868576), (7, 9191840), (8, 8042860), (10, 6434288), (14, 4595920), (16, 4021430), (20, 3217144), (28, 2297960), (29, 2218720), (32, 2010715), (35, 1838368), (40, 1608572), (49, 1313120), (56, 1148980), (58, 1109360), (70, 919184), (80, 804286), (98, 656560), (112, 574490), (116, 554680), (140, 459592), (145, 443744), (160, 402143), (196, 328280), (203, 316960), (224, 287245), (232, 277340), (245, 262624), (280, 229796), (283, 227360), (290, 221872), (392, 164140), (406, 158480), (464, 138670), (490, 131312), (560, 114898), (566, 113680), (580, 110936), (784, 82070), (812, 79240), (928, 69335), (980, 65656), (1015, 63392), (1120, 57449), (1132, 56840), (1160, 55468), (1415, 45472), (1421, 45280), (1568, 41035), (1624, 39620), (1960, 32828), (1981, 32480), (2030, 31696), (2264, 28420), (2320, 27734), (2830, 22736), (2842, 22640), (3248, 19810), (3920, 16414), (3962, 16240), (4060, 15848), (4528, 14210), (4640, 13867), (5660, 11368), (5684, 11320), (6496, 9905), (7105, 9056), (7840, 8207), (7924, 8120)]